I got a call in the spring to install a P&M BL2840, first impression of unit I was impressed, I went through the homeowners current system, a indoor Harmon, nice unit, about 12 years old, He really had no complaints except it roasted them out of there house to the point they had to valve off zones because it got to warm. digging in a little deeper, who ever plumbed it up did it in such a fasion that the woodboiler pump was pumping right by his flow checks and heating his whole house non stop. I told him what was happening but he was looking to get the fire danger outdoors and bingo I got the job. I started by gutting his current supply and return manifolds, got rid of the three pumps he was running, built a nice new manifold assembly with zone valves and one grundfos pump, throughout the summer we got the inground piping done, 60 plate HE, and set the stove. I think it was mid september when we lit it off, we also hooked a zone up in his 2500 sf shop and used an old used Modine fan coil to heat that (temporary). all and all the system runs great, throughout the job another guy in town got one which I hooked up also. I liked them so much I sold my Central and got one myself, what a great unit, Im getting between 12 & 14 hour burn times and about a third less wood than my central. anybody else having good luck with a P&M out there?